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Accumulated Other Comprehensive Loss
6 Months Ended
May 30, 2021
Equity [Abstract]  
ACCUMULATED OTHER COMPREHENSIVE LOSS ACCUMULATED OTHER COMPREHENSIVE LOSS
The following is a summary of the components of "Accumulated other comprehensive loss," net of related income taxes: 
May 30,
2021
November 29,
2020
May 24,
2020
 (Dollars in thousands)
Pension and postretirement benefits$(217,809)$(222,345)$(260,370)
Derivative instruments(85,501)(74,456)(23,215)
Foreign currency translation losses(146,013)(158,641)(200,723)
Unrealized gains on marketable securities17,834 13,996 6,612 
Accumulated other comprehensive loss$(431,489)$(441,446)$(477,696)

No material amounts were reclassified out of "Accumulated other comprehensive loss" into net income other than those that pertain to the Company's derivative instruments and pension and post retirement benefit plans. Refer to Note 4 and Note 7 for additional information.